Waste pipe cleaning machine



Oct. 15, 1940. J. PRICE WASTE PIPE CLEANING MACHINE Filed Nov. 16,. 1938 awe/whom ice Juiisan Pr Patented Oct. 15, 1940 UNITED" STATES PATENT OFFICE? Application November 16, 1938, Serial l Vo. 240,826

, 1 Claim.

My invention relates to certain new and useful improvements in means to clean clogged waste pipes in sinks, laundry tubs, toilets, etc., and it particularly has for its object to provide a simb ple, efiective and inexpensive apparatus for the purpose.

More in detail, the invention has for its object to provide a force pump arrangement with a resilient, flexible fitting on a rigid pump tube that pump leg and the entrance to the sink, toilet, etc., opening to be flushed. j

Other objects will in part be obvious and in part be pointed out hereinafter. To the attainment of the aforesaid objects and ends the invention still further resides in the novel details of construction, combination and arrangement of parts, all of which will be first fully describedin the following detailed description, and then be particularly pointed out in the appended claim, reference being had to the accompanying drawing, in whichn Fig. 1 is a perspective view of the apparatus in use as a sink drain cleaner. 1

Fig. 2 is a perspective view of the apparatus in use as a cleaner for toilet seats.

Figs. 3, 3 and 3'-"- constitute (when-A-B is connected to A-B and 0-D to 0-D) a central vertical section of the apparatus for sink or straight-way drain cleaning.

Fig. 4 is a detail view of the attachmentior toilet bowl openings. p

In the drawing, in which like numbers of reierence indicate like parts in all figm'es, l is the pump-cylinder, the ends of which are threaded to receive the cap 2 andbase I. The cap has a gland through which the pump rod i5 works and ithas an inlet opening I into-which the-coupling I of the hose 6 is screwed. I e

The base I is'shouldered to engage and hold the valve seat cage [securely in place against the cylinder l. I

The member 8 includes the valve seat proper ll and'the spider which has a bearing for comprises a tubular body having a tapered will act as a plug or sealing stopper between the cooperates with a seat 22 of the pistons passage.

the stem I! of the valve l2, a pini2 serving to limit the drop of the valve i2 from its seat II.

The base {has a threaded outlet into which a rigid pipe I is screwed, the pipe'having, near its lower end, a flange 3| serving as a shoulder to be engaged by the flexible railient (rubber) fitting that acts as a seal between the pipe II and the outlet of thesink, basin, tub or toilet to 1 be cleared. when a sink, basin or tub having a u straight-down-outlet is to. becleared, this fitting opening l0 (see dotted lines, Fig, 3*). When the apparatus is to be used to clear toilets, an angular fitting is used. This fitting comprises 5 a body 38 to fit on the pipe It (as does 35 in the case above referred to) and a tapered flexible elastic portion 39 projected with its axis at right angles to the pipe I (see Fig. 2, and dotted lines of Fig. 4) to wedge into the toilet duct 4|.

'At its entrant end the hose (flexible) 6 has a coupling 21 threaded into a receiving nozzle 28 which has a valve seat 29 and in which floats a valve 32 whose stem has crossed pins 3| serving to center the valve stem and also to prevent (by contact with 21) the valve from leaving its seat too far;

A handle 23 is pivoted to the upper end of the rod l5 and is connected, by a rigid link 25, pivoted at one end to the handle, with the base 1 by a pivotal connection 25 (see Figs. 1 and 2) The rod l5 carries a piston I! by a spider l8, and has fingers 20 which support a valve 2| that The rod i6 is hollowed at ii to receive the valve stem l'!, a vent l8 allowing free rise and fall of the stem in the space Ii.

In operation, the apparatus is placed in the entrance of the duct'to be cleared, as shown in Figs. 1 and 2, and the hose 6 is placed with its end 28 under waterand lever 23 is raised and lowered with one hand while cylinder i is held down by the other hand. 0n the up-stroke of the piston i9, valve l2 closes, as does also valve 32.' On the down-stroke valve 32 opens, while valve 2| closes and water is drawn through hose pipe 6 into cylinder i above piston i9. On raising the piston again the water above the piston passes through valve seat passage 22 in piston l9 and on the next down-stroke of the piston is iorced through valve seat passage ll into pipe I4 and through 85, 36, or 38, 39, as the case may be, into theduct to be cleared.

If thehosei is too short to reach the water. supply,- an additional length may be screwed into the threaded end 33 oi. the member 28.

skilled in the art.

What I claim is: In apparatus for the purposes described. wherein is provided a force pump having a flexible suc- 2 portion projecting beyond the end of the duct. said projecting portion extending at approximately right angles to the body portion and having its wall tapered toward the outlet end, said tapered portion being constructed to enter and plug the drain opening of a toilet seat.

JUDSON PRICE. 

